Effect of comprehensive nursing intervention on lung function and psychological state of patients with chronic obstructive pulmonary disease

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World Journal of Psychiatry

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2220-3206

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.

World J Psychiatry. Sep 19, 2026; 16(9): 118536
Published online Sep 19, 2026. doi: 10.5498/wjp.118536

Table 1 Comparison of baseline data between two groups, mean ± SD/n (%)

Baseline data	Control group (n = 77)	Observation group (n = 77)	t/χ² value	P value
Age (years)	58.93 ± 6.41	59.57 ± 7.35	0.576	0.566
Gender			0.244	0.621
Male	45 (58.44)	48 (62.34)
Female	32 (41.56)	29 (37.66)
Marital status			0.559	0.455
Have spouse	60 (77.92)	56 (72.73)
No spouse	17 (22.08)	21 (27.27)
Smoking history			0.107	0.744
Have	46 (59.74)	44 (57.14)
No	31 (40.26)	33 (42.86)
Standard of culture			0.199	0.905
Junior high school and below	39 (50.65)	40 (51.94)
High school/vocational school	25 (32.47)	26 (33.77)
College degree or above	13 (16.88)	11 (14.29)
Living			0.116	0.733
Living alone	27 (35.06)	25 (32.47)
Not living alone	50 (64.94)	52 (67.53)
Medical payment method			0.145	0.703
Medical insurance/commercial insurance	58 (75.32)	60 (77.92)
At his own expense	19 (24.68)	17 (22.08)
Merge other underlying diseases			0.247	0.619
Yes	46 (59.74)	49 (63.64)
No	31 (40.26)	28 (36.36)
Course of COPD (years)	6.45 ± 1.76	6.79 ± 1.81	1.182	0.239

COPD: Chronic obstructive pulmonary disease.

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Table 2 Comparison of 6-minute walking distance between two groups (mean ± SD)

Indicator	Phase	Control group (n = 77)	Observation group (n = 77)	t value	P value
6-MWD (m)	Before intervention	219.86 ± 21.19	216.94 ± 20.05	0.878	0.381
6-MWD (m)	Postintervention	234.85 ± 24.87^a	261.21 ± 27.76^a	4.247	< 0.001

^aP < 0.05 vs before intra group intervention.

6-MWD: 6-minute walking distance.

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Table 3 Comparison of two groups of lung function indicators (mean ± SD)

Pulmonary function indicators	Phase	Control group (n = 77)	Observation group (n = 77)	t value	P value
FEV₁ (L)	Before intervention	1.24 ± 0.19	1.21 ± 0.22	0.906	0.367
FEV₁ (L)	Postintervention	1.62 ± 0.27^a	1.98 ± 0.39^a	6.660	< 0.001
FVC (L)	Before intervention	1.93 ± 0.31	1.91 ± 0.34	0.381	0.703
FVC (L)	Postintervention	2.41 ± 0.39^a	2.86 ± 0.45^a	6.631	< 0.001
FEV₁/FVC (%)	Before intervention	64.52 ± 4.56	63.35 ± 5.32	1.460	0.146
FEV₁/FVC (%)	Postintervention	67.22 ± 4.26^a	69.23 ± 6.05^a	2.384	0.018

^aP < 0.05 vs before intra group intervention.

FEV₁: Forced expiratory volume in 1 second; FVC: Forced vital capacity.

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Table 4 Comparison of sleep status scores between two groups (score, mean ± SD)

Indicator	Phase	Control group (n = 77)	Observation group (n = 77)	t value	P value
Bedtime	Before intervention	1.74 ± 0.35	1.79 ± 0.37	0.862	0.390
Bedtime	Postintervention	1.35 ± 0.31^a	0.87 ± 0.24^a	10.740	< 0.001
Sleep time	Before intervention	1.42 ± 0.25	1.48 ± 0.29	1.375	0.171
Sleep time	Postintervention	1.15 ± 0.23^a	0.95 ± 0.21^a	5.635	< 0.001
Hypnotic drugs	Before intervention	1.37 ± 0.30	1.44 ± 0.37	1.290	0.199
Hypnotic drugs	Postintervention	1.12 ± 0.25^a	0.96 ± 0.21^a	4.301	< 0.001
Daytime function	Before intervention	1.43 ± 0.29	1.46 ± 0.32	0.609	0.543
Daytime function	Postintervention	0.85 ± 0.22^a	0.63 ± 0.17^a	6.943	< 0.001
Sleep disorders	Before intervention	1.67 ± 0.38	1.72 ± 0.40	0.795	0.428
Sleep disorders	Postintervention	1.28 ± 0.29^a	1.08 ± 0.27^a	4.429	< 0.001
Sleep efficiency	Before intervention	1.74 ± 0.40	1.79 ± 0.43	0.747	0.456
Sleep efficiency	Postintervention	1.28 ± 0.36^a	0.92 ± 0.39^a	5.952	< 0.001
Sleep quality	Before intervention	1.39 ± 0.33	1.41 ± 0.35	0.365	0.716
Sleep quality	Postintervention	1.08 ± 0.25^a	0.92 ± 0.23^a	4.133	< 0.001
PSQI total score	Before intervention	10.76 ± 2.53	11.09 ± 2.86	0.758	0.449
PSQI total score	Postintervention	8.11 ± 1.73^a	6.33 ± 1.36^a	7.098	< 0.001

^aP < 0.05 vs before intra group intervention.

PSQI: Pittsburgh Sleep Quality Index.

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Table 5 Comparison of psychological conditions between two groups (mean ± SD)

Psychological state	Phase	Control group (n = 77)	Observation group (n = 77)	t value	P value
SAS score (points)	Before intervention	57.74 ± 6.65	58.85 ± 7.04	1.006	0.316
SAS score (points)	Postintervention	54.85 ± 4.82^a	48.73 ± 3.97^a	8.601	< 0.001
SDS score (points)	Before intervention	54.54 ± 5.87	55.18 ± 5.92	0.674	0.502
SDS score (points)	Postintervention	50.75 ± 4.31^a	46.92 ± 3.58^a	5.998	< 0.001

^aP < 0.05 vs before intra group intervention.

SAS: Self-rating Anxiety Scale; SDS: Self-rating Depression Scale.

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Table 6 Comparison of St. George’s Respiratory Questionnaire scores between two groups (mean ± SD)

SGRQ dimension	Phase	Control group (n = 77)	Observation group (n = 77)	t value	P value
Disease symptoms	Before intervention	66.74 ± 6.23	67.32 ± 6.79	0.552	0.581
Disease symptoms	Postintervention	52.83 ± 5.58^a	47.83 ± 4.98^a	5.866	< 0.001
Activity capacity	Before intervention	60.61 ± 5.95	61.29 ± 6.02	0.705	0.482
Activity capacity	Postintervention	55.75 ± 5.04^a	49.85 ± 4.85^a	7.402	< 0.001
Life impact	Before intervention	50.61 ± 7.28	51.09 ± 7.56	0.401	0.689
Life impact	Postintervention	37.09 ± 5.33^a	29.25 ± 4.73^a	9.654	< 0.001

^aP < 0.05 vs before intra group intervention.

SGRQ: St. George’s Respiratory Questionnaire.

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Citation: Qiu YH, Yao JJ, Wu JY, Yang Q, Shen Y, Feng Q, Jin L. Effect of comprehensive nursing intervention on lung function and psychological state of patients with chronic obstructive pulmonary disease. World J Psychiatry 2026; 16(9): 118536
URL: https://www.wjgnet.com/2220-3206/full/v16/i9/118536.htm
DOI: https://dx.doi.org/10.5498/wjp.118536

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